Classifications

• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
  • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
  • F16K27/00—Construction of housing; Use of materials therefor
  • F16K27/003—Housing formed from a plurality of the same valve elements
• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
  • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
  • F16K27/00—Construction of housing; Use of materials therefor
  • F16K27/02—Construction of housing; Use of materials therefor of lift valves
• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
  • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
  • F16K27/00—Construction of housing; Use of materials therefor
  • F16K27/02—Construction of housing; Use of materials therefor of lift valves
  • F16K27/029—Electromagnetically actuated valves
• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
  • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
  • F16K31/00—Actuating devices; Operating means; Releasing devices
  • F16K31/02—Actuating devices; Operating means; Releasing devices electric; magnetic
  • F16K31/06—Actuating devices; Operating means; Releasing devices electric; magnetic using a magnet, e.g. diaphragm valves, cutting off by means of a liquid
  • F16K31/0644—One-way valve
  • F16K31/0651—One-way valve the fluid passing through the solenoid coil
• • H—ELECTRICITY
  • H01—ELECTRIC ELEMENTS
  • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
  • H01F7/00—Magnets
  • H01F7/06—Electromagnets; Actuators including electromagnets
  • H01F7/064—Circuit arrangements for actuating electromagnets
• • H—ELECTRICITY
  • H01—ELECTRIC ELEMENTS
  • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
  • H01F7/00—Magnets
  • H01F7/06—Electromagnets; Actuators including electromagnets
  • H01F7/08—Electromagnets; Actuators including electromagnets with armatures
  • H01F7/18—Circuit arrangements for obtaining desired operating characteristics, e.g. for slow operation, for sequential energisation of windings, for high-speed energisation of windings
• • H—ELECTRICITY
  • H01—ELECTRIC ELEMENTS
  • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
  • H01F7/00—Magnets
  • H01F7/06—Electromagnets; Actuators including electromagnets
  • H01F2007/062—Details of terminals or connectors for electromagnets

Definitions

• the invention relates to an adapter device and method for controlling a control current of a magnetic force actuator of a valve, in particular in the form of a coaxial valve.
• a magnetically directly controlled valve in coaxial design is known, which is controlled by an electronic device that detects and evaluates the applied voltage and the current flow at any time of the valve actuation, which flows through a valve disposed in the solenoid coil , which serves as a magnetic force actuator for a magnet armature, with which the addressed valve can be opened and closed by means of an axially movable in a valve housing in opposite directions valve piston.
• the current and voltage values applied to the known magnetic coil, which are used for the coil control, can hereby be changed analogously or digitally by means of the electronics. In this way, it is possible to change the applied voltage or the current flowing through the magnetic coil in an analogous manner or in digital form, for example by means of a pulse width modulation. rules.
• the magnetic force actuator in the form of the solenoid is connected in the known solution for the purpose of energizing a plug part which is wired directly from the outside to the valve body hard wired to the solenoid and is therefore connected in a non-exchangeable manner to the coil control of the electronics, the has on its input side in addition to the power supply via a corresponding signal input.
• the pressure-balanced, known coaxial valve can be operated with very low electrical power and controlled steplessly from the valve position; alone, the plug part is in addition to the upstream electronics of the design and technical design always adapted to a particular type of valve and accordingly not modular for different types of valves and valve types used.
• different manufacturers use different types of standardized plug-in parts to control the individual, different valve types, also in the form of coaxial valves, with different flow behavior, so that in order to meet every plug type and valve type, to design a separate electronics and the plug part is to be advanced. Based on this prior art, the invention is therefore an object of the invention to improve the known solution.
• the adapter device serves to regulate a control current of a magnetic force actuator of a valve, in particular in the form of a coaxial valve, with a housing in which hardware and software for controlling the control current of the magnetic force actuator of the valve are integrated, and the one Connecting device for releasably connecting to the valve and a further Closing device for releasably connecting with a connector part, via which the adapter device can be energized at least from the outside;
• a connection of measuring devices and evaluation is readily possible.
• connection means comprises means for releasably mechanically and electrically connecting the adapter device with the valve, in particular for connection to the magnetic coil of the magnetic force actuator of the valve, and the further connection means for releasable mechanical and electrical connection of the adapter device with the Plug part on.
• plug and socket parts that are in common, especially standardized form, with female and male contact parts engageable with each other.
• the hardware may include a computing unit, in particular a microcontroller, on which a method for regulating the control current in the form of the software is implemented.
• a microcontroller as a processing unit has the advantage that microcontrollers are inexpensive, have low energy consumption and can be installed to save space.
• All components of the hardware can be arranged on a printed circuit board and are electrically connected to one another via conductor tracks as described below.
• the printed circuit board can be fixed to the housing of the adapter device.
• the hardware can furthermore comprise at least one rotary switch for parameterizing the adapter device, in particular the software implemented on the arithmetic unit.
• the rotary switch is electrically connected to the arithmetic unit, in concrete terms with a flow control system implemented on the arithmetic unit.
• the rotary switch is preferably designed as a coding switch. Coding switches are characterized by their high reliability and their ease of use.
• a first rotary switch is provided for setting an operation mode of the adapter device such as an operation mode having the function of reducing the power of the magnetic force actuator or an operation mode having the function of closing the valve or an operation mode in the form of a service mode. If the adapter device is used for the first time in combination with a respective valve, it must be adapted to this valve by means of a parameterization of the software parameters adapted to the respective valve.
• a second rotary switch is provided for setting the nominal size (DN 1 0 to DN40) of the respective valve, which relate to the free connection cross-section of the valve.
• a third rotary switch is for setting the inputs and Shutdown speed of the valve provided.
• At least the second and the third rotary switch have sixteen switch Stel settings, so that on the second rotary switch sixteen Mögl possibilities for SET ment of different valve nominal large and the third rotary switch sixteen combinations of different switch-on and switch-off are selectable.
• the hardware may further comprise at least one display means for indicating a faulty operating state of the valve or for indicating the switching Stel development of a valve member of the valve.
• the display means can be controlled by the arithmetic unit and connected to the sequence control, which is software-implemented on the arithmetic unit.
• the display means may be arranged to be visually or acoustically perceptible to an operator of the adapter device from outside the adapter device. It is also conceivable that the flow control to an external, d. H.
• the hardware can have an output stage, which is connected on the input side to the arithmetic unit, in particular to an output of a current-controller which is software-implemented on the arithmetic unit.
• the output stage is supplied by the current controller with a pulse width modulated (PWM) signal for controlling the control current whose duty cycle, which indicates with what percentage of the maximum power the pulse width modulated signal drives the output stage, is calculated by the software.
• PWM pulse width modulated
• the output stage can be operated in the switching mode in which the transistors are either in a conductive or insulating work area.
• the output stage essentially has a half-bridge, preferably two, transistors in combination with a suitable driver module.
• a power amplifier designed as a half-bridge has a higher overall efficiency than a final stage designed as a voltage bridge, with, for example, four transistors, due to lower switching losses.
• the output stage is connected via the connection device to a coil of the magnetic force actuator anschliessbar.
• the power consumption of the valve can be reduced by outputting a pulse-width-modulated signal, namely the control current or the control voltage, of the output stage for controlling the coil of the magnet actuation device.
• the hardware can additionally comprise a current-determining device for determining an actual value of the control current of the coil, the output side of the arithmetic unit, in particular a resistance value computing module and / or an induction voltage computing module and / or the current regulator and / or is connected to the flow control, which are each software-implemented on the arithmetic unit.
• a current-determining device for determining an actual value of the control current of the coil, the output side of the arithmetic unit, in particular a resistance value computing module and / or an induction voltage computing module and / or the current regulator and / or is connected to the flow control, which are each software-implemented on the arithmetic unit.
• the current determination device can have a shunt resistor, which can be connected to the coil of the magnetic force actuating device via the connection device in such a way that the current through the coil also flows through the shunt resistor, above which for determining the actual value of the Control current ofistsabfal l is measured.
• the control current is the supply current flowing into the magnetic force actuator the magnetic force actuator.
• the resistance value of the shunt resistor is preferably in the mili-ohm range or below.
• the current measurement by means of a shunt resistor has the advantage that it is inexpensive and space-saving and the current measurement with this is easy to carry out. However, the use of a Hal l effect current sensor for measuring the control current is also conceivable.
• the hardware can furthermore comprise a voltage determination device for determining the actual value of the control voltage of the magnetic force actuating device, by means of which the actual value of the control voltage of the coil of the magnetic force actuating device can be tapped via the connection device on the input side and the output side of the latter Computing unit, in the concrete to the resistance value computing module and / or to the induction voltage computing module and / or to the flow control is connected, each of which is software-implemented on the arithmetic unit.
• the control voltage is the applied to the magnetic force actuator supply voltage of the magnetic force actuator.
• the current determination device can have an amplifier for amplifying the actual value of the control current, whose gain is adapted to an input-side analog-to-digital converter of the arithmetic unit for processing the actual value of the control current.
• the voltage determination device for amplifying the actual value of the control voltage may have a further amplifier whose gain is matched to another input-side analog-to-digital converter of the arithmetic unit for processing the actual value of the control voltage.
• the software implemented on the arithmetic unit may comprise a software-implemented resistance value calculation module for determining the value of the resistance of the coil of the magnetic force actuation device, which is connected to an input to an output of the voltage measurement unit. and connected to another input to an output of the current detection device and the output side is connected to an input of a software-implemented induction voltage computing module.
• the resistance calculation module calculates the resistance of the coil, which varies as a function of the temperature. In the calculation, the valve part is assumed to be stil pending.
• the software-implemented induction voltage calculation module for determining the actual value of the induced voltage of the coil of the magnetic force actuator is provided with an input to an output of the resistance value computing module, with another input to the output of the voltage detection device and with a another input connected to the output of the Stromars device, which are each available in hardware.
• the induction voltage calculation module is connected to a software controller implemented on the computing unit.
• the software may further include a software-implemented sequence control for processing predetermined control signals for controlling the valve and / or a predetermined parameterization of the adapter device, which is communicatively connectable via the further connection device and the plug part with the external main processing unit, for example by means of SDCI standard (single-drop digital communication interface for small sensors and actuators, standard IEC TR 61 1 31 -9), better known under the communication system IO-Link.
• the main computer transmits the flow control u. a. Control signals for regulating the valve.
• At least one hardware rotary switch and / or the output of the current detection device and / or the output of the voltage detection device are connected to the sequence control and on the output side, this is for the transmission of Sol l values of the induced Voltage connected to a voltage regulator or for transmitting Sol l values of the control current to a current regulator, which are each software-implemented on the arithmetic unit.
• the software may also comprise the software-implemented voltage regulator, which is connected on the input side to the sequence control for transmitting Sol l values of the induced voltage and to the voltage computing module for transmitting actual values of the induced voltage and, on the output side, if necessary with an input connected to the current controller.
• the voltage regulator regulates the induced voltage of the coil based on the sol I value and the determined actual value of the induced voltage by outputting a signal from which the sol I value of the control current is derived.
• the control voltage is the applied to the magnetic force actuator supply voltage of the magnetic force actuator.
• the induced voltage of the coil directly across the coil deviates from the control voltage for some time when the control voltage or the control current changes.
• a change in the control voltage or the current results in a change in the magnetic flux through the coil.
• Due to the change in the magnetic flux a voltage is induced in the coil according to Lenz's rule, which influences the value of the control voltage.
• the control current increases in the event of a positive change in the control voltage, ie a voltage increase, only as soon as I reach its final value. With a negative change in the control voltage, ie a voltage reduction, the current can still flow when a corresponding circuit is maintained.
• the magnetic circuit is striving for the current-carrying coil to reduce its magnetic resistance by, for example.
• Schl conceivablen an air gap can during a Schl ischenens the air gap a tension is induced in the spools.
• the control voltage is influenced only indirectly by the current regulator.
• the software may further comprise the software-implemented current regulator connected to its one input to the sequencer or to the output of the voltage regulator for transferring Sol l values of the control current, and to the other input to the current - Connection device is connected.
• the current controller regulates the control current to the preset Sol l value.
• the software may also include a software implemented switch that is controllable by the sequencer and that preferably connects one input of the current controller to either the sequencer or the output of the voltage regulator.
• the software may also include other software-implemented functions. It is conceivable, for example, a function for lowering the current of the spool, in particular in continuous operation; and / or a function for moving the venti ls m with a predetermined speed when switching on and off; and / or a function for detecting the switching state of the Venti ls; and / or a function for monitoring valve parameters, such as, for example, the switching cycles, the turn-on duration, the starting current and / or the coil resistance.
• the invention also relates to a method for regulating a control current of a magnetic force actuating device of a valve which has at least one coil with which the adapter device according to one of claims 1 to 17 can be operated ,
• the method comprises the following method steps:
• Control of the control current of the coil based on the result of the comparison, by the current controller.
• the Sol l value of the control current can be specified by a parameterization or determined according to the following further method steps:
• the regulation of the control current in particular due to the inclusion of the induced voltage of the coil, can be carried out particularly accurately.
• Fig. 1 in a side view, shown separately from each other, the adapter device according to the invention between a plug part and a valve;
• Fig. 2 is a schematically simplified longitudinal section of the valve
• Fig. 3 in a kind of schematic diagram schematically the basic
• Fig. 1 shows a side view of the inventive cylindrical adapter device between a standard plug part 4 and a valve 6, which are shown separated from each other.
• Standardized or standard plug-in parts 4 are industrial connection standards, such as M12 or PG cable glands etc., are used.
• the adapter device comprises a cylindrical housing 8 which comprises a housing cover 10 and a housing pot 12, which are connected to one another via a bayonet socket, which allows a quick manufacture and releasable mechanical connection of the two housing parts 10, 12 ,
• a sealing ring For sealing can be arranged between the housing cover 10 and the housing pot 12, not shown in the figures, a sealing ring.
• a connection device 14 for mechanically and electrically connecting the adapter device with the valve 6 is provided, the means 16 for releasably connecting the adapter device and the valve 6 in shape having a connector socket.
• connection device 1 8 for connection to a plug part provided, the means 20 for releasable mechanical and electrical connection of the adapter device with the standard Plug part 4 in the form of a connector plug has.
• the standard plug-in part 4 shown in FIG. 1 is a valve connector bent in the form of a plug connector socket which can be connected to the plug connector 20 arranged on the housing cover 110 of the adapter device in an electrically and mechanically releasable manner is.
• the valve 6 has a cylindrical valve housing 22, on the outside thereof, radially wegersteckend to the longitudinal axis L of the valve housing 22, a connection device 24 is arranged in the form of a connector stripper, which is formed in wesentl Iene square and on its side facing the valve housing 22 has a concave surface with a radius which allows a positive engagement of the connection device 24 with this surface to the valve housing jacket.
• the connector plug 24 of the valve housing 22 is connected to the
• Connector socket of the adapter device electrically and mechanically detachable connectable.
• FIG. 2 shows a schematically simplified longitudinal section of the valve 6 in the form of a coaxial valve.
• a hollow, cylindrical valve member 26 is guided in a longitudinally displaceable manner, which under the action of an energy accumulator 28 in the form of a compression spring in a closed position Plant with a valve-Schl yerteil 30, in this the fluid idweg path through the valve 6 between a fluid inlet E and a fluid outlet A along a predetermined flow path for a fluid, such as hydraulic medium (oil) locks.
• a fluid such as hydraulic medium (oil) locks.
• the magnetic force actuator 32 shown in FIG. 2 comprises a currentable actuating magnet 34, which has a coil winding 36 in the usual and therefore not described in more detail manner, which via the plug part 4, the adapter device and the connection device 24 of the valve u. a. from the outside can be energized. Furthermore, a longitudinally movable armature 38 is present, which, under direct contact and firmly connected to the valve member 26, acts directly on this. When the coil 36 is supplied with current, the magnet armature 38 moves to the left from its energized state of the coil 36, as shown in FIG. 2, and moves the valve part 26 equally to the left, against the action of the energy accumulator 28 in the form of the compression spring.
• the armature 38 of the actuating magnet 34 is moved to block against a pole core 42 of the actuator 32, leaving a separation gap 40 or air gap, which serves as a stepped magnetic separation for the actuating magnet 34.
• a display means 56 is connected in the form of a light source to the circuit board via a power cable 54. The display means may also be located on the board, the lid 10 then being transparent.
• a software S for controlling the control current i s of the magnetic force actuator 32 of the valve 6 is implemented, which essentially comprises a resistance computing module 58, an induction voltage computing module 60, a sequencer 62, a voltage regulator 64 , a current regulator 66 and a switch 68, each software-implemented on the arithmetic unit 46 and cooperating as set forth below.
• the sequence control 62 is communicatively connected via the further connection device 18 and via the plug part 4 to the external main computing unit, which is not shown in the figures.
• the communication system IO-Link is intended for communication.
• the sequence controller 62 receives control signals predetermined by the main processing unit for controlling the valve 6, in particular setpoint values of the voltage and the current, as well as a predefined parameterization of the adapter device and processes this information data.
• the process flow Main unit control 62 on request Information about the adapter device or valve 6.
• the three rotary switches 44, 70, 72 in the form of code switches are connected to the sequencer 62 (see FIG. 3) for parameterizing the software S in addition to the parameterization by means of the external main computer unit not shown in the figures.
• a first rotary switch 44 is provided for setting an operation mode of the adapter device. If the adapter device is used for the first time in combination with a respective valve 6, this must be adapted to this valve 6 by means of a parameterization of the software parameters adapted to the particular valve 6.
• a second rotary switch 70 is provided for setting the nominal size of the respective valve 6.
• a third rotary switch 72 is provided for adjusting the ON and OFF speed of the valve 6.
• the second 70 and the third 72 rotary switches each have sixteen switching Stel settings.
• a display means 56 in the form of a light source, for example.
• An LED for indicating a faulty operating state of the valve 6 or to display the switching Stel ment of the valve member 26 of the valve 6 is connected.
• the display means 56 is arranged on the outside of the adapter device and visually perceptible by a user of the adapter device. However, the display means may also preferably be located on the board.
• the current detection device 50 (see FIG. 3) has a shunt resistor, not shown in the figures, which is connected via the connection device 14 to the coil 36 of the magnetic force actuator 32 such that the current through the coil 36 also flows through the shunt resistor, above which the current value of the control current .
• ist is the coil 36 of the voltage drop l is measured.
• the current determination device 50 further comprises for amplifying the ascertained actual The value of the control current i s is an amplifier 74, the gain of which is adapted to an input-side analog-to-digital converter of the arithmetic unit 46 for processing the amplified actual values of the control current / Sij .
• the current determination device 50 transmits the amplified actual values of the control current / Sj, respectively to the resistance value calculation module 58, to the induction voltage calculation module 60, to the current regulator 66 and to the sequence control 62.
• the voltage determination device 52 determines and amplifies the actual values of the control voltage u s is the magnetic force actuating device 32.
• the actual value of the control voltage u s is the coil 36th the magnetic force actuator 32 on the input side of the voltage detection means 52, which has a further amplifier 76 for amplifying the actual value of the control voltage w S i St , whose gain to another input side AnalogVDigital converter of Mikrocontrol coupler for processing the amplified Actual value of the control voltage U s is adjusted.
• the voltage determination device 52 transmits the measured and amplified actual values of the control voltage U s to the resistance value calculation module 58, to the induction voltage calculation module 60, and to the sequence control 62 , respectively.
• the resistance value calculation module 58 calculates the value of the resistance R of the coil 36 of the magnetic field. Actuator 32 and transmits this to the induction voltage computing module 60th
• the induction chip is calculated.
• the actual values of the induced voltage u i is the coil 36 of the magnetic force actuator 32 and transmits it to the voltage regulator 64.
• the voltage regulator 64 (see FIG. 3) regulates the induced voltage u t of the coil 36 based on the actual values of the induced voltage u i and the sol l values of the induced voltage u i soll transferred by the sequence controller 62 Output of a signal from which the Sol l value of the control current i s soH is derived.
• the current controller 66 controls the control current i s of the coil 36 based on the sol I values of the control current i s and the actual values of the measured and amplified control current I s
• Control current i SiSO u can w e this wah lweise either the sequence control 62 or the voltage regulator 64 are transmitted.
• the switch 68 is provided for switching between the outputs of these two software components.
• the switch 68 is shown in FIG. 3 for the simpler depicting because of the manner of a hardware circuit and insofar can be controlled by the sequencer 62 via a control line 78 such that the input of the current controller 66 for the transmission of Sol l values of the control current i s so wah lweise either with the sequencer 62 or with the output of the voltage regulator 64 is connected.
• the switch 68 is implemented exclusively in the software. If the switch 68 connects the sequencer 62 to the current regulator 66 and disconnects the voltage regulator 64 from the current regulator 66, the control current i s is exclusively based on the measured and amplified actual values of the control current I s and predetermined Sol l values of the control current i s soH performed.
• the switch 68 connects the output of the voltage regulator 64 m with the current controller 66 and separates the Ab- Run control 62 of the current controller 66, the control of the control current i s based on a calculated induction voltage of the coil 36, whereby the control is more precise feasible.
• the current controller 66 generates a pulse width modulated signal PWM and transmits this to the output stage 48 (see FIG. 3) for amplification.
• the output stage 48 essentially has a half-bridge, not shown in the figures, in combination with a suitable driver module, not shown in the figures.
• the output stage 48 for outputting the control current i s is connected via the connection device 14 to the coil 36 of the magnetic force actuator 32 of the valve 6.

Priority Applications (5)

Applications Claiming Priority (2)

Publications (1)

Family

ID=63642974

Family Applications (1)

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Citations (5)

• 2017
  • 2017-09-23 DE DE102017008944.2A patent/DE102017008944A1/de not_active Withdrawn
• 2018
  • 2018-09-17 EP EP18773137.7A patent/EP3685078A1/de not_active Withdrawn
  • 2018-09-17 BR BR112020003900-4A patent/BR112020003900A2/pt not_active Application Discontinuation
  • 2018-09-17 JP JP2020516548A patent/JP2020534487A/ja active Pending
  • 2018-09-17 CN CN201880061054.5A patent/CN111094819A/zh active Pending
  • 2018-09-17 WO PCT/EP2018/075095 patent/WO2019057673A1/de active Application Filing
  • 2018-09-17 US US16/648,318 patent/US20200217428A1/en not_active Abandoned
  • 2018-09-21 TW TW107133316A patent/TW201921211A/zh unknown

Patent Citations (5)

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